i am new to growing and would like to start my first grow soon. originally i wanted to use hps lighting, but was advised against it because of the space that i have to work with (2x2x5). i am now thinking about using cfl's and have a few questions. i am thinking about using 4, 3-light bathroom style fixtures, one on the top of the box, and one on each of the three sides (excluding the door). this would come out to 12 lights. i want to grow 3 plants, and have heard that 100w per plant is good, and this would come out to 504w. is this too much? or will the increased lighting lead to increased yield? also, should i get 12 cool white bulbs and 12 warm white bulbs and switch between veg and flower, or could i get 6 of each and not have to switch? thank you.